a blob of e.g. Tippex on the disc hub centre and the inside of the wheel also eases alignment when re-fitting thumbs

Also, pretty obvious but no less important, don't mix the wheels up as the grub screw position won't match up....

Lionel wheel nut tool here -


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- highly recommended smile

James

Aero8 , Series 1 - Boston Green
RR Evoque P300E Autobiography
Smart Brabus Convertible
Monkey Z125